Product
Introducing License Enforcement in Socket
Ensure open-source compliance with Socket’s License Enforcement Beta. Set up your License Policy and secure your software!
@babel/plugin-transform-typeof-symbol
Advanced tools
This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning “symbol” for symbols)
The @babel/plugin-transform-typeof-symbol package is a plugin for Babel, a JavaScript compiler, that ensures the behavior of the 'typeof' operator is spec-compliant when used with symbols. In environments that do not fully support symbols, this plugin transforms 'typeof' checks to a method that can correctly identify 'symbol' types.
Transform typeof checks for symbols
This code represents the transformation that the plugin applies to 'typeof' checks. It defines a function that can correctly identify symbols, even in environments that do not natively support the 'symbol' type.
var _typeof = function(obj) { return obj && typeof Symbol !== 'undefined' && obj.constructor === Symbol ? 'symbol' : typeof obj; };
This package helps to reuse Babel's injected helper code to save on codesize. It includes a typeof helper for symbols, similar to what @babel/plugin-transform-typeof-symbol provides, but it's part of a broader set of transformations.
Although not a direct alternative, core-js is a modular standard library for JavaScript, which includes polyfills for symbols. It ensures that 'typeof' checks for symbols work correctly in older environments, similar to the goal of @babel/plugin-transform-typeof-symbol.
This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning “symbol” for symbols)
See our website @babel/plugin-transform-typeof-symbol for more information.
Using npm:
npm install --save-dev @babel/plugin-transform-typeof-symbol
or using yarn:
yarn add @babel/plugin-transform-typeof-symbol --dev
v7.25.7 (2024-10-02)
babel-helper-validator-identifier
babel-traverse
babel-plugin-transform-classes
super()
check (@nicolo-ribaudo)babel-generator
infer
in compact mode (@nicolo-ribaudo)[no LineTerminator here]
after nodes (@nicolo-ribaudo)babel-types
babel-core
--experimental-require-module
(@nicolo-ribaudo)babel-helper-compilation-targets
, babel-helper-plugin-utils
, babel-preset-env
babel-plugin-proposal-destructuring-private
, babel-plugin-syntax-decimal
, babel-plugin-syntax-import-reflection
, babel-standalone
babel-generator
[no LineTerminator here]
before nodes (@nicolo-ribaudo)babel-plugin-transform-typescript
babel-types
BABEL_TYPES_8_BREAKING
at startup (@nicolo-ribaudo)FAQs
This transformer wraps all typeof expressions with a method that replicates native behaviour. (ie. returning “symbol” for symbols)
The npm package @babel/plugin-transform-typeof-symbol receives a total of 21,773,469 weekly downloads. As such, @babel/plugin-transform-typeof-symbol popularity was classified as popular.
We found that @babel/plugin-transform-typeof-symbol demonstrated a healthy version release cadence and project activity because the last version was released less than a year ago. It has 4 open source maintainers collaborating on the project.
Did you know?
Socket for GitHub automatically highlights issues in each pull request and monitors the health of all your open source dependencies. Discover the contents of your packages and block harmful activity before you install or update your dependencies.
Product
Ensure open-source compliance with Socket’s License Enforcement Beta. Set up your License Policy and secure your software!
Product
We're launching a new set of license analysis and compliance features for analyzing, managing, and complying with licenses across a range of supported languages and ecosystems.
Product
We're excited to introduce Socket Optimize, a powerful CLI command to secure open source dependencies with tested, optimized package overrides.